The WF-C700N Noise Cancelling headphones deliver crystal-clear sound, comfort, and a long-lasting battery for everyday use. Control ambient sound with 20 levels or let Adaptive Sound Control do this automatically. Its now easier than ever to focus on your music. Designed for everyday use, with long-lasting battery life, quick charging (10min charge = 1 hour play), Multipoint Connection, IPX4 water resistance, and smart features. Reliable calls, wherever you take them. The Wind Noise Reduction Structure of these Sony earphones delivers your voice clearly, even outside on a windy day.